Basically barrier items that kill a player when its touched.
With this one item we can already create condo minigames (like platforming) and out-of-bounds zones in condo’s.
(Sorry if this was already suggested, i couldn’t find it.)

I remember wanting to build obstacle courses and stuff back in GMTower, I do hope there’s going to be a lot of ways to use buttons which make walls appear/disappear and things like that in Tower Unite, so we can really make our own little minigames and crazy contraptions in Tower Unite.